Physics Problems and Solutions MCQs Test Online PDF Book Download

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MCQ on Physics Problems and SolutionsQuiz Book Download

MCQ: If motor gets over loaded, then its

  1. slows down
  2. back EMF decreases
  3. back EMF increases
  4. both a and b

D

MCQ: With alternative current, inductor behaves like

  1. resistor
  2. capacitor
  3. transistor
  4. wire

A

MCQ: A metal rod of 25 cm is moving at 0.5 m s-1 in direction perpendicular to 0.25 T magnetic field, EMF produced is

  1. 0.12 × 10-2 V
  2. 1.12 × 10-2 V
  3. 3.12 × 10-2 V
  4. 2.12 × 10-2 V

C

MCQ: Law that states that direction of induced current is always as to oppose change which causes current, is

  1. Faradays law
  2. Lenz's law
  3. Newton's law
  4. motional EMF

B

MCQ: While grasping wire in right hand with thumb pointing to direction of current is known as

  1. right hand rule
  2. left hand rule
  3. thumb hand rule
  4. both a and b

A